That's a bit of a stretch?

People who pay for Kagi likely tried the trial and found the results to be far enough better than google/microslop that they are willing to pay for the ongoing service. Or they want to support a business model that isn't based around the advertising industry, so that someday Kagi can realistically compete with the incumbents. I don't need to search for things often enough to justify the cost, but I know people who use it for work and consider it to be worth the cost.

Meanwhile people who bought NFTs thought that they could sell a copy of a digital image for lots of money.